2729472 has 40 divisors (see below), whose sum is σ = 7275576. Its totient is φ = 909312.

The previous prime is 2729459. The next prime is 2729473. The reversal of 2729472 is 2749272.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2729473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 648 + ... + 2424.

2^2729472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2729472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3637788).

2729472 is an abundant number, since it is smaller than the sum of its proper divisors (4546104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2729472 is an equidigital number, since it uses as much as digits as its factorization.

2729472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1782 counting only the distinct ones).

The product of its digits is 14112, while the sum is 33.

The square root of 2729472 is about 1652.1113763908. Note that the first 3 decimals coincide. The cubic root of 2729472 is about 139.7524878403.

The spelling of 2729472 in words is "two million, seven hundred twenty-nine thousand, four hundred seventy-two".